JWasm

JWasm is a Masm-compatible assembler. It supports 16-, 32- and 64-bit code, instructions up to AVX and various output formats. It's written in C.

Project Activity

See All Activity >

License

Sybase Open Watcom Public License

Follow JWasm

JWasm Web Site

Other Useful Business Software

Forever Free Full-Stack Observability | Grafana Cloud

Our generous forever free tier includes the full platform, including the AI Assistant, for 3 users with 10k metrics, 50GB logs, and 50GB traces.

Built on open standards like Prometheus and OpenTelemetry, Grafana Cloud includes Kubernetes Monitoring, Application Observability, Incident Response, plus the AI-powered Grafana Assistant. Get started with our generous free tier today.

Create free account

Rate This Project

User Ratings

5.0 out of 5 stars

★★★★★

★★★★

★★★

★★

★

ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 0 / 5

features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 0 / 5

design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 0 / 5

support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 0 / 5

User Reviews

Filter Reviews:

All

lastp Edited 2021-01-29

JWasm ended in 2014. New versions are available as projects ASMC or UASM on GitHub.
haunte Posted 2013-03-11

Great tool. I was finding a compiler for old dos and this works very well. It's good to know this works with x64 as well.
sergstetsuk Posted 2012-09-26

Very good alternative to masm and tasm in most cases.
peter_kuznetsov Posted 2011-04-11

Great job!
jj2007 Posted 2011-03-21

A very good alternative to Masm, and a lot faster. Almost fully compatible, the remaining 0.1% are in the bugs list; before embarking on a bigger project, study that list, although usually these bugs have no relevance for the average user ;-)

Additional Project Details

Operating Systems

FreeBSD, Linux, MS-DOS, Server Operating Systems, Windows

Languages

English

Intended Audience

Developers

User Interface

Command-line

Programming Language

Assembly, C

Related Categories

Assembly Compilers, Assembly Cross Compilers, Assembly Assemblers, C Compilers, C Cross Compilers, C Assemblers

Registered

2009-03-08

Similar Business Software

Parasoft

Parasoft helps organizations continuously deliver high-quality software with its AI-powered software testing platform and automated test solutions. Supporting embedded and enterprise markets, Parasoft’s proven technologies reduce the time, effort, and cost of delivering secure, reliable, and...

See Software
Bitrise

Bitrise is a CI/CD platform built for mobile development, helping teams speed up builds, automate testing, and deliver high-quality apps faster. It supports native languages like Swift, Objective-C, Java, and Kotlin, as well as cross-platform frameworks including React Native, Flutter, Xamarin,...

See Software
Windsurf Editor

The Windsurf Editor is a free AI-powered IDE and AI coding assistant that accelerates development by providing intelligent code generation and agents in over 70 programming languages and more than 40 IDEs, including VSCode, JetBrains, and Jupyter Notebooks. With Windsurf, developers can write...

See Software
Twilio

Design and deploy your ideal customer engagement experience. Twilio is a single fully-programmable platform with flexible APIs for any channel and over 400+ integrations, backed by a community of over 9 million developers. Build accurate and personalized experiences for your customers, easily...

See Software
Aikido Security

Secure your code, cloud, and runtime in one central system. Aikido’s all-in-one security platform is loved by developers and security teams alike with full security visibility, insight in what matters most, and fast/automatic vulnerability fixes. Teams get security done with Aikido thanks...

See Software
Creatio

Creatio is a global vendor of an agentic CRM & workflow platform with no-code and AI at its core. Its offerings include Creatio Studio, a no-code agentic platform to build applications and AI agents with natural language and visual designers, and a CRM suite with embedded AI agents across...

See Software